CN1184513A - Nonwoven laminate barrier material - Google Patents

Nonwoven laminate barrier material Download PDF

Info

Publication number
CN1184513A
CN1184513A CN96193919A CN96193919A CN1184513A CN 1184513 A CN1184513 A CN 1184513A CN 96193919 A CN96193919 A CN 96193919A CN 96193919 A CN96193919 A CN 96193919A CN 1184513 A CN1184513 A CN 1184513A
Authority
CN
China
Prior art keywords
nonwoven web
layer
web laminate
meltblown fibers
corona discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN96193919A
Other languages
Chinese (zh)
Inventor
B·科恨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kimberly Clark Worldwide Inc
Kimberly Clark Corp
Original Assignee
Kimberly Clark Worldwide Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kimberly Clark Worldwide Inc filed Critical Kimberly Clark Worldwide Inc
Publication of CN1184513A publication Critical patent/CN1184513A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/10—Surface shaping of articles, e.g. embossing; Apparatus therefor by electric discharge treatment
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025—Corona discharge or low temperature plasma
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/08—Organic compounds
    • D06M10/10—Macromolecular compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/576—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them containing fluorine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/04—Vegetal fibres
    • D06M2101/06—Vegetal fibres cellulosic
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/12—Keratin fibres or silk
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/02—Natural fibres, other than mineral fibres
    • D06M2101/10—Animal fibres
    • D06M2101/14—Collagen fibres
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Multicomponent Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

A nonwoven web laminate having improved particulate barrier properties is provided. Present on the nonwoven web laminate is an alcohol repellent material formed from a fluorinated urethane derivative. The particulate barrier properties are improved by subjecting said nonwoven web laminate to corona discharge.

Description

Nonwoven laminate barrier material
Invention field
The present invention relates to protective clothing.More particularly, the present invention relates to the protective clothing made with the improved non-weaving cloth of particulate blocking.
Background of invention
There is numerous species to aim to provide barrier property, limited application or uses disposable protective clothing.Protective clothing should be able to stop seeing through of liquid and/or particle.For various reasons, do not wish that liquid and the pathogen that may be carried by liquid see through these class clothes and touch the personnel that are operated in the pathogen environment.
Similarly, wish very much personnel are kept apart with the harmful substance that the workplace or the scene of the accident may exist.If increase the possibility of correctly wearing protective clothing, thereby the chance that reduce to expose, and the protective clothing of workman's dress is to liquid and/or particle impermeable and endurable relatively, however still very comfortable, so that unlikely reduction work efficiency of workers will be very useful to him then.After the use, the protective clothing decontamination that exposed in poisonous, harmful substances is dyed, its cost is normally quite high.Therefore, importantly, protective clothing becomes should hang down the disposable degree that allows.
A kind of protective clothing is with promptly abandoning the union suit protective clothing.The union suit protective clothing can be used for wearer and hostile environment are separated, and its significant degree is to open the flap or overcoat formula protective clothing is beyond one's reach such as apron, long gown etc.Therefore, in the occasion that wearer is kept apart in hope, the use of union suit protective clothing is a lot of.
Also comprise with promptly abandoning operation dress with promptly abandoning protective clothing, for example with promptly abandoning operation dustcoat and apron.As everyone knows, operation dustcoat and apron are intended to be used for, and see through the degree that this operation dress is propagated even if can't prevent from also will reduce widely the liquid and the biological pollutant that are bonded on the clothes.In operating environment, this class I liquid I source comprises sweat, the patient's of dustcoat wearer body fluid for example blood, saliva, sweat, and life keeps liquid, as blood plasma and salt solution.
Many operation dress were to make of cotton or flax in the past, will carry out disinfection before using in operating room.Yet this class operation dress can allow many kinds of liquid running in the surgical procedure see through or soak into.This class operation dress also is unfavorable if not unsatisfactory, because this liquid permeability is just for bacterium and other pollutants import the wearer of operation dress into and spread out of from it and to have set up direct path.And this class operation dress cost height, also have certainly, still needing before reusing will be through washing and sterilization.
Most flax operation dustcoat have been replaced with promptly abandoning operation dress.Because many operations usually require that the height liquid-repellant is arranged, soak into preventing, so under this condition employed usefulness promptly to abandon operation dress be to make of the cloth of liquid repellent mostly fully.
Therefore generally speaking, wish with promptly abandon protective clothing adopt to liquid and/the relatively not saturating cloth of particle makes.This class isolation-type cloth also must be fit to produce protective clothing with enough low cost, and is so that protective clothing is just abandoned after only using once, worthwhile from saying so economically.
For accomplishing availablely on cost benefit promptly to abandon.Union suit, operation dustcoat and operating apron that the example that the general usefulness made from nonwoven web laminate is promptly abandoned protective clothing has Kimberly-Clark company to sell.Many usefulness that Kimberly-Clark company sells are promptly abandoned protective clothing and are made of a kind of three layers of nonwoven web laminate.Wherein two skins are made by spunbond polypropylene fibre, and internal layer is made by the fusion-jetting polypropylene fiber.This two-layer spunbond skin provides solid, endurable, wear-resisting surface.Internal layer is waterproof not only, but also plays a part a kind of breathing freely-filtration barrier layer, but allows air and steam to see through whole cloth in the many deleterious particles of filtering.
In some cases, the material of formation protective clothing can comprise thin layer or film laminates.Can stop particle to see through the integral body of protective clothing though make protective clothing with film, this film or film laminates also can suppress or stop air and steam to see through the cloth of protective clothing simultaneously.Generally speaking, the protective clothing that the material that can't smooth and easyly see through with air and steam is made, correctly dress will be felt under the weather for a long time.
Therefore, though in some cases, film or film laminates material are compared with the nonwoven layer compound, and the improvement of particulate blocking aspect of performance can be provided, and the nonwoven layer compound provides bigger snugness of fit usually.Therefore, exist low cost with promptly abandoning protective clothing, more specifically say so to the low cost needs of promptly abandoning protective clothing that adopt a kind of like this non-weaving cloth to make, this non-weaving cloth can provide the particulate blocking performance of improvement, breathe freely again simultaneously, thereby feel very comfortable when correctly wearing for a long time.
The invention summary
The invention provides a kind of its particulate blocking performance has the nonwoven web of improvement.In one embodiment, this nonwoven web comprises at least one layer and a kind of anti-alcohol material through Corona discharge Treatment, and is particularly a kind of by fluoridizing the anti-alcohol material that the urethanes derivative is made.A kind of antistatic additive also can be present in the surface of this nonwoven web.
In another embodiment, this nonwoven web be a kind of comprise two-layer at least, and wherein at least one deck live through the laminated thing of Corona discharge Treatment.Wherein one deck can be made of spun-bonded fibre, and another layer can be made of meltblown fibers.A kind of antistatic additive can be present at least on the one layer surface.Equally, a kind of anti-alcohol material, especially a kind of by fluoridizing the anti-alcohol material that the urethanes derivative is made, also can be present at least on the one layer surface.
In another embodiment, this nonwoven web laminate is a kind of three layers laminated thing, and wherein one deck has passed through Corona discharge Treatment at least.Two skins can be made of spun-bonded fibre, and internal layer can be made of meltblown fibers.A kind of antistatic additive can be present at least on the one layer surface.Equally, a kind of anti-alcohol material, particularly a kind of by fluoridizing the anti-alcohol material that the urethanes derivative is made, also can be present in wherein at least on the one layer surface.
Detailed Description Of The Invention
According to " McGraw-Hill science and technology complete works ", the 7th edition, copyright in 1992, " dielectric " used herein speech is meant a kind of material, for example a kind of polymer, it is a kind of electrical insulator, perhaps its electric field can maintain and intensity dissipates minimum.If a kind of solid matter, its valency (electronics) band take, and with conduction band at a distance of 3eV (electron-volt) at least, it is exactly a kind of dielectric so.
Terminology used here " necking down " or " necking down stretching " can refer to a kind of method that non-weaving cloth is elongated mutually generally, generally are along machine direction, so that its fabric width is reduced to the numerical value of hope by the mode of control.Control stretching can be carried out under cold conditions, room temperature or higher temperature, and the limit of stretching is to make to be increased to maximum along the overall size of draw direction and to be no more than cloth is pulled open needed stretch value, and in most cases tension values is between about 1.2～1.4 times.When lax, fibre web is towards its original size retraction.A kind of like this method is disclosed in the United States Patent (USP) 4,443,513 of for example authorizing Meitner and Notheis, is the United States Patent (USP) 4,965,122,5,226,992 and 5,336,545 of authorizing Morman in addition, all receives the reference of making this paper for these several pieces.
Material is not heated during terminology used here " necking down is softening " is meant stretching, i.e. necking down at room temperature stretches.In necking down stretching or softening process, think that cloth has been stretched, for example 20%.
Here used " nonwoven web " speech is meant a kind of like this fibre web, and it has to be kinked mutually by single fiber or long filament and forms, rather than the structure of forming with identifiable repetitive mode.
Here employed " spun-bonded fibre " speech is meant such fiber, its preparation method is: molten thermoplastic is extruded as a synnema from the circular many pores of being generally of a kind of spinning plate, by for example described method of following document the diameter of extruding silk is attenuated rapidly then: the United States Patent (USP) 4 of authorizing people such as Appel, 340,563 and authorize people's such as Dorschner United States Patent (USP) 3,692,618, authorize people's such as Matsuki United States Patent (USP) 3,802,817, authorize the United States Patent (USP) 3,338,992 and 3 of Kinney, 341,394, authorize the United States Patent (USP) 3,502,763 and 3 of Levy, 909,009, and the United States Patent (USP) 3,542 of authorizing people such as Dobo, 615, all these all receive the reference of making this paper.Spun-bonded fibre is normally continuous, and its diameter is greater than 7 microns.
Here employed " meltblown fibers " speech is meant such fiber, its preparation method is: with molten thermoplastic from many tiny, be generally that the form with fusion silk or tow is expressed at a high speed the circular pattern hole, normally in Jia Re gas (for example air) stream, air-flow diminishes its diameter the tow drawing-down of molten thermoplastic.After this, this meltblown fibers is carried secretly and is deposited to by high velocity air and collects on the surface, forms the fibre web of being made up of the random meltblown fibers that is scattered.Meltblown is disclosed in the United States Patent (USP) 3,849,241 of for example authorizing Buntin, authorize people's such as Meitner United States Patent (USP) 4,307,143 and authorize in people's such as Wisneski the United States Patent (USP) 4,707,398, and these all receive the reference of making this paper.The diameter of meltblown fibers is usually all less than 10 microns.
Polymer, particularly polyolefin polymers, very suitable be used for making be used to implement nonwoven web of the present invention be shaped used fiber or tow.Nonwoven web can adopt the various processing technology manufacturings that include, without being limited to following method: air web method, wet method laying net method, hydroentanglement processes, spun-bond process, meltblown, staple card and Method for bonding and solution spinning.
Will can implement Corona discharge Treatment to the whole thickness of nonwoven web laminate in greater detail as following.Alternatively, also can implement Corona discharge Treatment respectively to each the independent nonwoven layer that constitutes afterwards nonwoven web laminate altogether.When the whole thickness of nonwoven web laminate is accepted Corona discharge Treatment, wish in all layer of non-weaving cloth that the fiber of one deck is to include but not limited to that by various following dielectrical polymer constitutes: polyester, polyolefin, nylon and copolymer thereof at least.The fiber that constitutes other nonwoven layers can include but not limited to that following non-dielectric matter polymer constitutes: cellulose, glass, wool and protein polymer with various.
When one or more independent nonwoven layers carry out Corona discharge Treatment respectively, wish that the fiber of these nonwoven layers of formation is made by above-mentioned dielectrical polymer.Those independent nonwoven layers without Corona discharge Treatment can be made by above-mentioned non-dielectric matter polymer.
Have been found that main component is the fiber of thermoplastic, particularly the nonwoven web that fiber was constituted based on polyolefin is particularly suitable for such use.The example of this fibrid comprises spun-bonded fibre and meltblown fibers.And the example of this class nonwoven web of being made by this fibrid is the polypropylene nonwoven fibre web that the registration assignee Kimberly-Clark company by the application produces.
In one embodiment, the present invention includes a kind of nonwoven web laminate.For example, this nonwoven web laminate can comprise the layer that at least one is made of spun-bonded fibre, and another layer that is made of meltblown fibers, for example a kind of spunbond/melt and spray (SM) nonwoven web laminate.In another embodiment, this nonwoven web laminate can comprise: at least one by meltblown fibers constitute the layer, it be sandwiched in two by spun-bonded fibre constitute the layer between, for example a kind of spunbond/meltblown/spunbonded (SMS) nonwoven web laminate.The example of this class nonwoven web laminate is disclosed in the United States Patent (USP) 4,041,203 of authorizing people such as Brock, the United States Patent (USP) 5 of authorizing people such as Collier, 169,706 and the United States Patent (USP) 4,374 of authorizing Bornslaeger, 888, these all receive the reference of making this paper.
More particularly, this spun-bonded fibre can be made by polypropylene.The polypropylene that is fit to this spunbond layer of making is exxon chemical company (Texas, Bei Dun) commercially available product of the trade name PD-9355 of Sheng Chaning.
More particularly, this meltblown fibers can be by polyolefin polymer, and more particularly, the blend of a kind of polypropylene and polybutene is made.The example of this class meltblown fibers is seen in United States Patent (USP) 5,165, and 979 and 5,204,174, the two all receives the reference of making this paper.Further specifically, this meltblown fibers can be that the polypropylene of 0.5～20% (weight) of blend and the blend of polybutene are made by polybutene content in the blend.The suitable polypropylene of a kind of this class is exxon chemical company (Texas, Bei Dun) the trade name 3746-G of Sheng Chaning.The polybutene that a kind of this class is suitable can be buied by trade name DP-8911 by shell chemical company (Texas, Houston).This meltblown fibers also can contain a kind of according to United States Patent (USP) 5,213, the polypropylene of 881 modifications, and this article is received the reference of making this paper.
The SMS nonwoven web laminate can be made like this: in turn, spreading spunbond web layer earlier on the forming belt that moves, spread the melt spray fibre web layer then, is another spunbond layer at last, subsequently, and by the described method bonded laminate in back.Alternatively, each layer made individually, collects rolling, combines in independent adhesion step then.The Unit Weight of such SMS nonwoven web laminate is generally about 0.1～12 ounce per square yard (osy) (3～400 gram/square metre (gsm)), perhaps more particularly, be about 0.75～about 5osy (25～170gsm), further specifically, be about 0.75～about 3osy (25～100gsm).
The method of nonwoven web being implemented Corona discharge Treatment is well-known to those skilled in the art.Come to the point, corona discharge is by accepting near the structure (EFRS) electric field and send structure (EFIS) and add the realization of enough direct currents (DC) voltage being positioned at electric field.This voltage should be high enough at EFIS place generation ion and make it to flow to EFRS from EFIS.EFIS and EFRS are preferably made by conductive material.Suitable conductive material comprises copper, tungsten, stainless steel and aluminium.
Nonwoven web is implemented the U.S. Patent application that transfer University of Tennessee 07/958, the 958 disclosed technology of a kind of concrete technology of Corona discharge Treatment in submission on October 9th, 1992, this article is received the reference of making this paper.This technology relates to allows nonwoven web accept a pair of effect of electric field, and wherein these two electric polarities are opposite.Each electric field all forms one group of corona discharge.
At those nonwoven webs is under the situation of nonwoven web laminate, can allow the whole thickness of this nonwoven web laminate all accept the corona discharge effect.In other cases, can allow the fiber that constitutes one or more individual courses of nonwoven web laminate or constitute these individual courses accept Corona discharge Treatment respectively, combine according to the relation that overlaps each other and other layers then, form nonwoven web laminate.In some cases, the lip-deep electric charge of nonwoven web laminate can equal the Corona discharge Treatment lip-deep electric charge of fibre web afterwards substantially before the Corona discharge Treatment.In other words, after fibre web polarity corona discharge, the electric charge that the nonwoven web laminate surface is had usually can not be higher than the electric charge that exists on the fibre web surface before its enforcement corona discharge.
Nonwoven web laminate can carry out bonding usually in its production process in some way, so that give its enough globality, resists all harsh effect suffered in the process that further is processed into final products.The bonding several different methods that adopts is finished, and for example Hydroentangled, acupuncture, ultrasonic bonds, adhesive is bonding and heat bonding.
The enforcement of ultrasonic bonds for example can send nonwoven web laminate a kind of ultrasonic wave to take place between head and the anvil roller, as the United States Patent (USP) 4,374 of authorizing Bornslaeger, described in 888.
The heat bonding of nonwoven web laminate can be finished by making between the roller of laminated thing by hot-rolling mill.At least one heats in the roller of hot-rolling mill, in these rollers at least one, not necessarily with the heating be same, have decorative pattern, after laminated thing passed through between roller, this decorative pattern just had been stamped on the laminated thing.When cloth passes through between roller, not only be subjected to heat, and the effect that is under pressure.The heat that applies along specific decorative pattern and this synergy of pressure cause clinkering district one by one in nonwoven web laminate, the decorative pattern of being made up of bounding point on the bounding point on it and the hot roll is corresponding.
Various hot roll decorative patterns have been developed.An example is the Hansen-Pennings decorative pattern, and its bond area is about 10～25%, and wherein bounding point density is about 100～500 point/square inches, can be referring to the United States Patent (USP) 3,855,046 of authorizing Hansen and Pennings.The Argyle that another kind of common decorative pattern is made up of the rhombus one by one that repeats and setover slightly.
Being used for bonding definite hot roll temperature of nonwoven web laminate and pressure should decide according to the concrete thermoplastic that constitutes this nonwoven web.Generally speaking, for the nonwoven web laminate that is made of polyolefin, preferred temperature is 150～350.F (66～177 ℃), pressure are 300～1000 pounds/vertical inch.More particularly, for polypropylene, preferred temperature is 270～320 °F (132～160 ℃), and pressure is 400～800 pounds/vertical inch.
Be applied to or have combustible material and worry can produce under the situation in the environment of static in its vicinity at those nonwoven webs, available anti-static material is arbitrarily handled this nonwoven web.Under this class situation, anti-static material can adopt arbitrarily that technology joins in the non-weaving cloth, comprising but be not limited to: non-weaving cloth is immersed in the solution that contains anti-static material, perhaps will contains the spray solution of anti-static material on non-weaving cloth.In some cases, anti-static material can be administered in the body of two outer surfaces of non-weaving cloth and/or this non-weaving cloth.Under other situation, anti-static material can be administered on the part of non-weaving cloth, on for example selected its one or both sides.
Useful especially is the trade name ZELEC that E.I.Du Pont Company produces Antistatic additive or anti-static material, this is a kind of phosphate product of alcohol.Nonwoven web can make fibre web before discharge process, also can handle with anti-static material after discharge process.And, can carry out anti-static material to some or all layers in the material layer and handle, having only some material layer under the situation that anti-static material is handled, untreated layer can with accept discharge process before or after the layer of antistatic treatment combines.
In addition, use under the spirituous nearby situation at those nonwoven webs, this nonwoven web can be handled with a kind of anti-alcohol (seeing through) material.In this case, anti-alcohol material can adopt any technology to be administered on the non-weaving cloth, comprising but be not limited to: with the solution soaking that contains anti-alcohol material or spray this nonwoven web.In some cases, anti-alcohol material can be administered in the body of two outer surfaces of non-weaving cloth and/or this non-weaving cloth.Under other situation, anti-alcohol material can be administered on the part of non-weaving cloth, on for example selected its one or both sides.
Useful especially is by fluoridizing the anti-alcohol material that the urethanes derivative is made, and its example comprises FX-1801.FX-1801, former L-10307 by name can be buied by 3M company (Minnesota State, Sao Paulo).The fusing point of FX-1801 is about 130～138 ℃.FX-1801 can join in spunbond and/or the meltblown layer, and its consumption is about 0.1～about 2.0% (weight), perhaps more particularly, is about 0.25～1.0% (weight).But the FX-1801 local application perhaps can join inside, promptly before fibre forming FX-1801 is joined in the polymer that constitutes fiber and goes.
Generally speaking, be applicable to internal additives of the present invention, for example anti-alcohol additive FX-1801, should be nontoxic and volatility low.In addition, should the be the highest anti-temperature to 300 ℃ of the heat endurance of this internal additives, and can be dissolved in fully in the fibre-forming polymer of fusion or semi-molten.This internal additives also should be separated fully, so that do not need heating, along with fiber cooling, described additive can be from the integral body of the polymer fiber surface migration towards this polymer fiber.
Constitute each bed of cloth of the present invention and also can contain fire retardant improving refractory ability, pigment so that every layer with going up same or different colors, and/or the chemicals such as hindered amine is to provide better ultraviolet resistance ability.Being used for fire retardant and pigment spunbond and that melt and spray thermoplastic polymer is known technically, and they can be internal additives.If use pigment, its common content is less than 5% (weight) of this layer.
Example
In order to show feature of the present invention, prepared 3 kinds of polypropylene nonwoven samples, and it has been carried out Corona discharge Treatment.
Sample 1
Sample 1 comprises the meltblown layer of about 0.5osy (17gsm), and it is clipped between the spunbond layer of two each about 0.55osy (187gsm), constitutes the laminated thing of final SMS of about 1.6osy (54gsm) Unit Weight.Spunbond layer is made by the polypropylene copolymer of the commodity PD-9355 by name of exxon chemical company production.Meltblown layer is made by the polypropylene of the commodity 3746G by name of exxon chemical company production and the polybutene of the commodity DP-8911 by name that shell chemical company produces, and the latter's content is about 10% (weight).It is softening that the laminated thing of the SMS of sample 1 has carried out 8% necking down at normal temperatures.About 0.03% the ZELEC that contains this spunbond layer weight on the surface of spunbond layer
The meltblown layer of sample 1 contains FX1801.At the FX1801 that in this polyacrylic polymer, has added about 1.0% (weight) before the fibre forming.As mentioned above, form at this polyacrylic polymer during the process of fiber, FX1801 is that white shape is floating to be dispersed on the meltblown fibers surface of shaping.
Sample 2
Sample 2 is polypropylene SMS nonwoven web laminates of Unit Weight 1.8osy.Its spunbond layer is made by Exxon PD-3445 and these two kinds of acrylic resins of HimontPF-301.White and navy blue pigment-Ampacet41438 (Ampacet company, New York) and SCC4402 (Standrige pigment company, Georgia) in the acrylic resin that constitutes one of spunbond layer, have been added respectively.Another spunbond layer is to be made by the above-mentioned acrylic resin that does not add pigment.Meltblown layer is to be made by the acrylic resin Himont PF-015 that does not add pigment.
The average Unit Weight of meltblown layer is about 0.45osy, and the average Unit Weight of each spunbond layer is about 0.675osy.
The solution that has prepared 2.95%FC808 by the adding following compositions: 0.5% hexanol, 2.95%FC808 and about 96.5% water.By the mode of spraying this 2.95%FC808 solution is applied on the spunbond layer.Spunbond layer heating to after spraying becomes dry until spunbond layer.FC808 is a kind of anti-alcohol surface conditioning agent, is made of a kind of ester (20%), water (80%) and trace ethyl acetate (400ppm) of fluorine-containing aliphatic series of polymerization.FC808 can buy from 3M company (Minnesota State, Sao Paulo).Sample 2 does not contain ZELEC
Sample 3
Sample 3 is that Unit Weight is the melt spray fibre web of 1.5osy.About 2.4% the FC1802 that in melt spray fibre web, contains melt spray fibre web weight.FC1802,3M company produces, and is a kind of internal additives that goes in the polyacrylic polymer that joined before fibre forming.The main component of FC1802 is the fluorinated alkyl alkoxide compound of eight carbon atoms.The fluorinated alkyl alkoxide compound of these eight carbon atoms constitutes 86～89% of FC1802 solution.Other compositions of FC1802 comprise the fluorinated alkyl sulfonamide (9～10%) of eight carbon atoms, the fluorinated alkyl alkoxide compound (2～4%) of seven carbon atoms and the fluorinated alkyl sulfonamide (0.1～1%) of seven carbon atoms
The equipment that produces corona discharge is: model is P/N 25 amp-120 volts, 50/60 hertz reversible polarity electric supply installation (Simco company, Pennsylvania, Hatfield), it is connected with FFIS, and also having a model is the P16V120 volt, 0.25 pacify 50/60 hertz of electric supply installation (Simco company, Pennsylvania, Hatfield), it is connected with EFRS.EFIS is a RC-3Charge Master charging rod (Simco company), and EFRS is the aluminium roller of 3 inches of solid diameters.The corona discharge environment is 71 and 53% relative humidity.As described in above-mentioned U.S. Patent application 07/958,958, use two couples of E FIS/EFRS.First pair of EFIS/EFRS institute making alive is respectively 15KV/0.0KV.Second pair of EFIS/EFRS institute making alive is respectively 25KV/7.5KV.Distance between the every couple of EFIS and the EFRS is 1 inch.
Measured each side surface voltage of each sample.(Trek344 type (Trek company, New York, Median)) is measured surface voltage with an electrostatic voltmeter.Numerical value given below is mean value.These mean values are to be averaged acquisition by at least 10 readings of each side to each sample.
Estimated each sample in the forward and backward particle filtration performance of corona discharge.The particle filtration test that is used to estimate the particle filtration performance of these samples generally is referred to as sodium chloride filter efficiency test (to call the sodium chloride test in the following text).The sodium chloride test is at an automatic fitration testing machine--Certitest TM8110 types (Technical Sourcing Internation make (Minnesota State, Sao Paulo))--on carry out.The particle filtration efficient of test cloth specimen provides to see through percentage.Seeing through percentage calculates by following formula: 100 * (1-(downstream granule number/upstream particle number)).The representative of upstream particle number is introduced in the sum of the about 0.1 micron sodium chloride aerosol particle that goes in the testing machine.The downstream granule number is that those are introduced in the testing machine and have seen through the above-mentioned granule number of the whole thickness of test cloth specimen.Therefore, the given percentage numerical value that sees through is to be introduced in the percentage that also sees through the total number of particles of the whole thickness of test cloth specimen in the testing machine in the controlled air flow in table 1～5.The size of test cloth specimen is 4.5 inch diameters.
Air mass flow can be constant or change.Under about 32 liters/minute condition of air mass flow, the pressure reduction between test cloth specimen upstream side atmosphere that causes and the test cloth specimen downstream atmosphere is about 4～5 millimeters of water (gauge pressure).
The filter efficiency of sample 1～3 is stated from table 1～3 respectively.
Table 1
Sample 1
See through percentage 33.2% 2.57% Δ P before the corona discharge behind the corona discharge, the millimeter of water 7.0 6.9 air mass flows, liter/minute 30.7 30.6 surface charge amounts-60, A side-5, the A side
-3, B side-5, B side
Table 2
Sample 2
See through percentage 63.0% 62.4% Δ P before the corona discharge behind the corona discharge, the millimeter of water 5.4 4.2 air mass flows, liter/minute 28.5 28.3 surface charge amounts-1, A side (unique)-66, A side (unique)
Table 3
Sample 3
See through percentage 53.7% 5.0% Δ P before the corona discharge behind the corona discharge, the millimeter of water 4.6 4.8 air mass flows, liter/minute 29.8 30.8 surface charge amounts-7, A side-2, the A side
-74, B side-5, B side
As shown in table 1, sample 1 promptly contains the laminated thing of SMS of FX1801 in the meltblown layer, through the percentage that sees through after the corona discharge, compares with the sample 1 without Corona discharge Treatment, has reduced more than 10 times.That is to say, compare that the particle that sees through the whole thickness of cloth of Corona discharge Treatment will lack 10 times with the cloth of non-Corona discharge Treatment.
Shown in table 2 and 3, the sample 2 of Corona discharge Treatment and 3 and the sample 2 and 3 of non-Corona discharge Treatment between seeing through on the percentage almost do not observing what difference.Though these result's hints, no matter sample 2 or sample 3, after the process Corona discharge Treatment, the particulate blocking performance does not all have remarkable improvement, yet, whether all are with fluorinated alkyl alkoxide compound or all materials based on the fluorine-containing aliphatic (acid) ester of polymerization, and the particulate blocking performance of the non-weaving cloth of Corona discharge Treatment is all had similar influence, still belong to unknown.
When the sample after the Corona discharge Treatment 1 (table 1) seen through the percentage result, during with the seeing through the percentage result and compare of sample 2 and 3 (respectively in table 2 and 3) after the Corona discharge Treatment, can be clear that what obtain is remarkable difference and unpredictable consequence.In this connection, though nonwoven web can adopt some kinds of anti-spiritses to handle, the nonwoven web that all anti-alcohol are handled does not all show the improvement of particulate blocking aspect of performance when standing Corona discharge Treatment.The applicant is verified, and with fluoridizing the anti-alcohol material that the urethanes derivative constitutes, wherein an example comprises FX-1801, and the particulate blocking performance of the nonwoven web of handling has been improved through after the Corona discharge Treatment significantly at this nonwoven web.
Table 4 is given under the various different flows, along the percentage that sees through of each test point of Corona discharge Treatment sample 1 fabric width.
Table 4 air mass flow, liter/minute 9.4 11.8 16.0 31.8 66.9 Δ P, the millimeter of water 1.8 2.1 3.0 5.8 13.7 sees through percentage 4.12 0.255 2.12 3.74 3.42
Table 5 is given under the constant flow rate, along the percentage that sees through of each test point of Corona discharge Treatment sample 1 fabric width.
Table 5 air mass flow, liter/minute 23.1 23.1 23.1 Δ P, the millimeter of water 4.6 5.0 4.9 sees through percentage 0.974 1.00 3.55
Presentation of results in the table 4 and 5 changes Δ P (millimeter of water) and flow (rise/minute) in the scope of being studied, seeing through percentage and do not produce what influence resulting test particle.Difference in the table can be with the fibre web fluctuation that is shaped, and or rather, fluctuates with the fibre density of whole fibre web existence and to explain.In other words, the fluctuation through percentage numerical value may be because the variation on each concrete test point place fibre density of fibre web causes.
Though with regard to some particular of the present invention the present invention is described in detail, yet know, those those skilled in the art can be easy to associate alternative, the flexible and scheme of equal value at these embodiments after having understood foregoing.Therefore, scope of the present invention should be regarded as the scope of appended claim and any content defined of equal value thereof.

Claims (20)

1. nonwoven web, this fibre web comprises:
At least one by fiber constitute the layer, wherein fiber be through Corona discharge Treatment and comprise a kind of by fluoridizing the anti-spirits that the urethanes derivative is made.
2. the nonwoven web of claim 1, the fiber that wherein constitutes this layer is a meltblown fibers, it is to be made by the blend of polypropylene and polybutene.
3. the nonwoven web of claim 2, wherein the Unit Weight of the layer that is made of meltblown fibers is about 0.45 ounce per square yard.
4. the nonwoven web of claim 1, wherein fiber comprises a kind of antistatic treatment agent.
5. the nonwoven web laminate of claim 2, wherein the content of polybutene in blend is 0.5～20% of blend weight.
6. nonwoven web laminate, this laminated thing comprises:
At least two by spun-bonded fibre constitute the layer and at least one by meltblown fibers constitute the layer, wherein by meltblown fibers constitute the layer be clipped in these two by spun-bonded fibre constitute the layer between, and wherein at least the fiber of one deck passed through Corona discharge Treatment; And
Wherein one deck comprises by fluoridizing the anti-spirits that the urethanes derivative is made at least.
7. the nonwoven web laminate of claim 6, wherein meltblown fibers is to be made by the blend of polypropylene and polybutene.
8. the nonwoven web laminate of claim 7, wherein the content of polybutene in blend is 0.5～20% of blend weight.
9. the nonwoven web laminate of claim 6, wherein the Unit Weight of this nonwoven web laminate is about 1.8 ounce per square yard.
10. the nonwoven web laminate of claim 6, wherein the Unit Weight of the layer that is made of meltblown fibers is about 0.45 ounce per square yard.
11. the nonwoven web laminate of claim 6, wherein meltblown fibers has passed through Corona discharge Treatment.
12. a nonwoven web laminate, this laminated thing comprises:
At least two by spun-bonded fibre constitute the layer and at least one by meltblown fibers constitute the layer, wherein by meltblown fibers constitute the layer be clipped in these two by spun-bonded fibre constitute the layer between, and wherein at least the fiber of one deck passed through Corona discharge Treatment, and
Wherein at least one comprises antistatic treatment agent by the layer that spun-bonded fibre constitutes, and the layer that wherein is made of meltblown fibers comprises by fluoridizing the anti-spirits that the urethanes derivative is made.
13. the nonwoven web laminate of claim 12, wherein meltblown fibers is to be made by the blend of polypropylene and polybutene.
14. the nonwoven web laminate of claim 13, wherein the content of polybutene in blend is 0.5～20% of blend weight.
15. the nonwoven web laminate of claim 12, wherein the Unit Weight of this nonwoven web laminate is about 1.8 ounce per square yard.
16. the nonwoven web laminate of claim 12, wherein by meltblown fibers constitute the layer Unit Weight be about 0.45 ounce per square yard.
17. the nonwoven web laminate of claim 12, wherein meltblown fibers has passed through Corona discharge Treatment.
18. the nonwoven web laminate of claim 12 is wherein pressed the test determination of sodium chloride filter efficiency, its particle filtration efficient is compared with the similar nonwoven web laminate without Corona discharge Treatment, has improved more than 10 times.
19. the nonwoven web laminate of claim 12 is wherein pressed the test determination of sodium chloride filter efficiency, along the particle filtration efficient of this nonwoven web laminate fabric width in about 0.947～about 3.55 scopes.
20. the nonwoven web laminate of claim 12, it is at room temperature necking softeningly to have stretched 8%.
CN96193919A 1995-03-16 1996-02-23 Nonwoven laminate barrier material Pending CN1184513A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40548595A 1995-03-16 1995-03-16
US08/405,485 1995-03-16

Publications (1)

Publication Number Publication Date
CN1184513A true CN1184513A (en) 1998-06-10

Family

ID=23603894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96193919A Pending CN1184513A (en) 1995-03-16 1996-02-23 Nonwoven laminate barrier material

Country Status (16)

Country Link
EP (1) EP0815306B1 (en)
JP (1) JPH11501997A (en)
KR (1) KR19980703063A (en)
CN (1) CN1184513A (en)
AT (1) ATE221149T1 (en)
AU (1) AU690837B2 (en)
BR (1) BR9607228A (en)
CA (1) CA2212984C (en)
CZ (1) CZ289297A3 (en)
DE (1) DE69622544T2 (en)
HU (1) HUP9801332A2 (en)
NO (1) NO974250L (en)
NZ (1) NZ304207A (en)
PL (1) PL322162A1 (en)
SK (1) SK121997A3 (en)
WO (1) WO1996028597A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018192006A1 (en) 2017-04-20 2018-10-25 佛山金万达科技股份有限公司 Vapour-permeable barrier-type functional film laminate
CN109260828A (en) * 2018-09-04 2019-01-25 江苏明晶布业股份有限公司 A kind of technique that PTFE superfine fibre Nomex eliminates electrostatic
CN111499979A (en) * 2020-06-16 2020-08-07 江苏金发科技新材料有限公司 Melt-blown polypropylene composition and preparation method and application thereof

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5834386A (en) * 1994-06-27 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven barrier
US5834384A (en) * 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
US5972039A (en) * 1997-04-07 1999-10-26 Isolsyer Company, Inc. Increased absorbency and hand-feel fabrics
US6213122B1 (en) 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
MXPA02012648A (en) * 2000-07-12 2003-04-25 Kimberly Clark Co Antistatic composition.
KR100438331B1 (en) * 2001-10-18 2004-07-01 (주)크린앤사이언스 A manufacturing method and a material of filtering inflow air for engine
AU2003295352A1 (en) * 2002-10-23 2004-05-13 Bba Nonwovens Simpsonville, Inc. Nonwoven protective fabrics with conductive fiber layer
DE10250275B4 (en) * 2002-10-28 2014-08-21 Paul Hartmann Ag Disposable garment
US7931944B2 (en) 2003-11-25 2011-04-26 Kimberly-Clark Worldwide, Inc. Method of treating substrates with ionic fluoropolymers
US7811949B2 (en) 2003-11-25 2010-10-12 Kimberly-Clark Worldwide, Inc. Method of treating nonwoven fabrics with non-ionic fluoropolymers
US8026188B2 (en) 2009-06-25 2011-09-27 Techmer Pm, Llc Hydrophobic additive for use with fabric, fiber, and film

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927238A1 (en) * 1978-07-07 1980-01-17 Holm Varde As PLASTIC REINFORCING FIBERS AND METHOD FOR THEIR PRODUCTION
US4443513A (en) * 1982-02-24 1984-04-17 Kimberly-Clark Corporation Soft thermoplastic fiber webs and method of making
JPS5994621A (en) * 1982-11-12 1984-05-31 Unitika Ltd Production of antistaining fiber
US5310828A (en) * 1989-04-20 1994-05-10 Peach State Labs, Inc. Superior stain resistant compositions
US5165979A (en) * 1990-05-04 1992-11-24 Kimberly-Clark Corporation Three-dimensional polymer webs with improved physical properties
US5491022A (en) * 1993-09-24 1996-02-13 Lakeland Industries, Inc. Protective fabrics and garments
US5455108A (en) * 1993-12-30 1995-10-03 Kimberly-Clark Corporation Coated polymeric fabric having reduced adsorption of protein

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018192006A1 (en) 2017-04-20 2018-10-25 佛山金万达科技股份有限公司 Vapour-permeable barrier-type functional film laminate
US11884043B2 (en) 2017-04-20 2024-01-30 Foshan King Wonder Hi-Tech Co., Ltd. Laminate of film with vapor-permeable barrier function
CN109260828A (en) * 2018-09-04 2019-01-25 江苏明晶布业股份有限公司 A kind of technique that PTFE superfine fibre Nomex eliminates electrostatic
CN111499979A (en) * 2020-06-16 2020-08-07 江苏金发科技新材料有限公司 Melt-blown polypropylene composition and preparation method and application thereof

Also Published As

Publication number Publication date
EP0815306B1 (en) 2002-07-24
BR9607228A (en) 1998-07-07
EP0815306A1 (en) 1998-01-07
CA2212984A1 (en) 1996-09-19
WO1996028597A1 (en) 1996-09-19
ATE221149T1 (en) 2002-08-15
CZ289297A3 (en) 1998-03-18
JPH11501997A (en) 1999-02-16
AU5133596A (en) 1996-10-02
PL322162A1 (en) 1998-01-19
AU690837B2 (en) 1998-04-30
DE69622544D1 (en) 2002-08-29
NO974250L (en) 1997-10-08
NZ304207A (en) 1999-03-29
CA2212984C (en) 2004-12-14
SK121997A3 (en) 1998-07-08
HUP9801332A2 (en) 1998-09-28
NO974250D0 (en) 1997-09-15
MX9706751A (en) 1997-11-29
DE69622544T2 (en) 2003-03-20
KR19980703063A (en) 1998-09-05

Similar Documents

Publication Publication Date Title
AU708641B2 (en) Nonwoven web dielectric electrects with surface treatments
CN1184513A (en) Nonwoven laminate barrier material
AU683020B2 (en) Stretchable meltblown fabric with barrier properties
CN101358410B (en) Method of preparing polypropylene multi-layer nonwoven fabrics for medical treatment
EP0245933B2 (en) Non-woven fabric comprising at least one spun-bonded layer
JP3813170B2 (en) Nonwoven laminate with enhanced barrier properties
US7514380B2 (en) Selectively permeable protective structure and articles therefrom
CN1071386C (en) Method of providing a nonwoven fabric with a wide bonding window
CN1646753A (en) Multilayer non-woven fabric and use thereof
CN1176672A (en) Nonwoven fabric from polymers containing particular types of copolymers and having an aesthetically pleasing hand
US20090156079A1 (en) Antistatic breathable nonwoven laminate having improved barrier properties
KR100388871B1 (en) Multilayer Nonwoven Web Laminate
KR20080113548A (en) Polypropylene nonwoven fabric for medical use and producing process thereof
JP2018519430A (en) Nonwoven fabric treated with alcohol repellent
CN1241966A (en) Improved cloth-like, liquid-impervious, breathable composite barrier fabric
MXPA98004241A (en) Dielectric electretes of non-woven fabric with superfi treatment
MXPA97006751A (en) A laminated barrier material not tej
JPS60173140A (en) Cloth for dustless clothing
CN1161721A (en) Nonwoven fabric from blends of isotactic and actactic polyolefins
MXPA97004831A (en) Laminated fabric non-tramado de capas multip

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C01 Deemed withdrawal of patent application (patent law 1993)
WD01 Invention patent application deemed withdrawn after publication
REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1018086

Country of ref document: HK